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EAN-139780749692766   EAN-13 barcode 9780749692766
Product NameShopping Choices (Go Green)
LanguageEnglish
CategoryBook / Magazine / Publication
Short DescriptionHardcover
Amazon.comA Buy on Amazon ~ 0749692766
SKUG9780749692766
Price New13.99 US Dollars    (curriencies)
Price Used0.02 US Dollars    (curriencies)
Width215 centimeters    (convert)
Height274 centimeters    (convert)
Weight13.44 ounces    (convert)
AuthorHelen Lanz
Page Count32
BindingHardcover
Published05/13/2010
Long Description'Go Green: Shopping Choices' explains how the way we live today creates lots of waste, and looks at what we can all do to become better shoppers by reducing what we buy, making do and mending and choosing to buy more sustainable products. Packed with statistics, useful information and handy tips, each title in the tells us what steps we can all take to 'go green'.
Created11-22-2012 8:33:32am
Modified01-10-2014 6:17:19pm
MD5fc7b9712ab6574fe03ceed3795264d80
SHA256c02080e6419c2646870b4050869e89e6bb1ca802ea98edee03a7e237dc1a9e9e
Search Googleby EAN or by Title
Query Time0.0057728

Article of interest

Code 128 is a high-density 1D barcode symbology. This barcode set makes use of the entire 128 ASCII characters which include letter, number and symbols.

Code 128 Barcode

As with all barcodes, there are indicators to identify where the barcode starts and stops. These are marked in yellow below. Code 128 also has a check character which has been marked in green. The remainder of the barcode is the data being encoded. The text below the barcode is optional and is for human consumption in the event the barcode can't be scanned or if people also need to know what the code means.

Code 128 Barcode

Each character in the barcode symbol is composed of three bars and three spaces. Each bar or space must range from 1-4 units and the sum of all the width of all bars must work out to an even number. The stop marker is special because it adds an extra bar of 2 units at the very end (4 bars and 3 spaces). There are three different start markers to to identify which code set is being used. To represent all 128 characters, the code sets can be within a single barcode as needed by using control characters 98-101 (depending on the code set).

The check character is calculated by summing the value of each character and multiplying it by its position. The start character is also part of the sum but is added without weight (multiply by 1 just like the first encoded data character) then when you have the sum take the modulo 103 remainder. This gets a little more complex when mixing modes within a single barcode.

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